Milling attachment for lathes



Dec. $7, v1948. c, w. DYl-:R T 2,455,662

I MILLING ATTACHMENT FOR LATHES Filed June 22, 1945 2 Sheets-Sheet llijve/1737* Zmm MILLING ATTACHMENT FOR LATHES Filed Jun 22, 1945 v v`2'shvs;See'2 34 y I l 25 I l 52 E JH 256 .il 23 A T50 l i am@ A9jager/far C/Idr/es 7V. Dyer;

The present invention relates "new and "useful -improvements in lathes,`"and more particularly to a milling, jig borer and drill attachment forlathes embodyingfmeans for `operatively conlathe-headforoperationthereby.` g

` ,A- further?object` of the inventionis to provide abase `supportingthe shaft in aiverticalhposition above ithe workrnounted in the latheand embodying 4-rrieans "for adjusting the base transf y l rverselyasWellfas longitudinally on the "bedof the 1am-1e. i i i w i a snuffurnhefobject is tprovidelmeps `for continuously "driving the shaft duringeither a `porting `leerse `for the shaft.`

Another `omect `orme 'invention "is `ai*provide longitudinal or'transverse adjustment of the sunmeans for operatively connecting theshaft and supportingbaseto" the `converitional `lathe coinpound foroperation thereby, Vwhen desirdg i `A stillfurther AObjectis to provide"adevice of `this character of simple and practical constructiomiwhich is`efficientand reliable fin operation,

relatively-inexpensive -t`-o` linlanufaci'urey which may Vbe easilyand-quickly installedin operative `p'osif tion-on the lathe, and which`otherwise is` well` intended. Y n

"Other objects and advantages reside in 1 the deadapted fon-thelpurptises for Vwhich the s`a`rn`e"`is tails of construction andoperation as morefully-z hereinafter described and claimed, referencebeing had to the drawing `for-lining part hereof, wherein like numeralsrefer to like parts throughmutilatidrimwliichf:1 fw

Figure 1 is a side elevational iviewr f Figure 2 `is an `:enlarged `sideelevational vie of the ppst for the vertical shaft. M

3 is an enlargedl vertical sectipnalxsview taken substantially onalineg3--3` of Figur "1.

the indicator with parts in section. l

Figures 6, 7 and 8 are details of various types of tools and cuttersadapted for operative connection with the attachment and with the workshown in section, and

Figure 9 is a fragmentary sectional view taken substantially on a, line9--9 of Figure 2.

Referring now to the drawings in detail, wherein for the purpose ofillustrationI have disclosed a preferred embodiment of the invention,the numeral 5 designates the lathe bed of a convengatrnil'ling, `b oringor drilling to the thevieerklieeil? Y .l tively "eagasedqlby 91111011.

Figline 4111s a Vertical Sil-10931 WGW maken Pf `bymeetsomnativelymit;

`mounted the lathesheadl and with theintailr fl-fatthotheriendF-'ti-iereol` v l The llcompound is indicated at i8moperttivety" -mounted Ion `the :feed screws. "Ehe 'workgeueh as a `shaft indicatedfat will; is held fin ithemsuallfsmanfneribetweentheilathe'head B` land teilxstockfel.

:1 The attachment forming the presentiinvention comprises a ibase `I I`ahavinglguides d'2 at its lower sided` edges adapted :for slidablel`engagement longif tudinany on the-bed Sfthefbasemav-ins vlees flisecured thereto brumes-ns Qfwbolts lwandonising .in spaced relation 1to1each other abone eac; of. the les.. eImax/ing-V anioaeniasIiforerceiitaft I0 ablewithlrespact ma menen-mark head lidiadlcvateihemadame-ailes ihe1id`ariihaheadl" Rising from the Slidell* which a`sleeve i.s slid..

E; $1 aeve p. was@ ck; indicates-at 122s tional form of lathe and at oneend of which is 55 of universal joint 36,

medellin,

If desired, the rear leg I3 of the base I I may beY detachably connectedto the lathe compound byl means of a link 45 and by means of which thebase II, legs I3, head I6, post 28 and shaft 25 may be adjustedlongitudinally onthe bed 5 of the lathe under the control of the lathecompound 8 in the usual manner.

The shaft 25 may als' :be adjusted transversely ofthe` lathe bed byreleasing the set screw I9 and moving the slide I8 transversely in thehead vI6 bythe vmanipulation -of the feed screw vI8a.

In order to take upwear between `the sleeve 2I';andpost 2|), the post issplit vertically and Ahorizontally at its lower `end as indicated' at 46and 46a'and provided .with outwardly projecting -earsA 41` at its splitedges in which a clamping -screwi48'is Athreaded to contract the post tocornfpensate for wear of the sleeve.

l' 5A'bo`ve Vthe split 46, the post 20 is formed with a verticalslot 49in which a stud 50 is positioned for Vvertical sliding movement and'threaded at its inner end into the sleeve 2-I. -A bolt 5I is 'threadedat itsflower end into the outer end of thfstud 5I)v and is supported ina vertical position-*with'its upper endv slidable in a guide 52projecting outwardly from the up'per portion'of *the 'post Y2l). Upperand lower stop nuts 53 and 54 'are adjustably threaded on the bolt 5Iabove Figure 1 for moving the cutter longitudinally oi7 the work. Theslide I8 carrying the post 20, and shaft 25 is adjustable transverselyby means of the feed screw I8a and is locked in its adjusted position bythe set screw I9.

The shaft 25 is driven from the lathe head 6 by means of the belt 43,shaft 35, and gears 34 and 2'I and the universal joint 36 in the shaft35 enables constant driving of 4theshaft 25 during either a verticaladjustment of theA shaft 25 or a transverse adjustment thereof. Thesliding I keyway connection between the shaft 35 and the -`and below theguide respectively to limit vertical adjustment of the sleeve 12|.

-'1 "o vone side `of the Slot 49 is attached or marked a. lscaleI55"withwhiclia pointer 56 cooperates, thefpointer being adjustableAvertically in an opening '51 in one .side of the stud 50 andfricvtionally'secured in vertically adjusted position `therein by a,coil spring 58 forced yagainst the pointer by a lsetscrew 59."

` AIn thel operation of the device a desired cutting, l millingvv orother'suitable tool of a type as shown JIin Figures 6,,7 or 8 is'attached in the lower end of 'the shaft 25`and the shaft or other workI8 secured in positionthrough the? openings I5'in the legs I3`by thelathe head and tail stock 1. .It will yalso be apparent rthat millingpieces may be held on the lathe .compound 8 in a shoe, vise or otherconventional method of attachment for @use in jig boringjobs. l if Thebase Il may be adjustedlongitudinally on g the lathe bed 5 eithermanually or by attaching the; base to .the compound 8 `as illustrated inAnecting the shaft to the lathe head.

pulley 42 provided for the longitudinal adjustment of the attachment.

The shaft 25 and sleeve 2I may .be secured 4against vertical movement ina desired vertically adjusted position by the stop nuts 53 and 54 on thebolt5l or the nuts may be adjusted on the bolt to permit free raisingand lowering of the sleeve and shaft. v v .e Having thusl described theinvention, ylvvvhatl claim is:

1. An attachment for lathes of a type includ,- ing a bed, a lathe head,and a `screwfoperated lathe compound,r said attachment comprising asupport mountedon the bed for longitudinalfad- -justment Iand includingan opening forreceiving work mounted in the lathe, a hollow postrisingfrom the support, ra ve'rticalfshaft journaledin the post andadapted'for attaching a tool at its lower end, means for adjusting thepost h0ri zontally on the support to adjustthetooltransversely ofthework and means 'operatively con- 2. An attachment for lathes offa typeA'includ-- ing abed, a lathehead, andra screw-operated lathe compound,said attachment l comprising an inverted U-shaped support includingv apairpf legs, base plates at the lower ends of the'legs slidably mountedon the ways of the lathe for longitudinal movement, said legshavingopenings for receivng'work mountedon the lathe to extend through thesupport, a slide mounted for transverse `adjustment on thesupport abovethe work, a post rising from the slide, a rotatable vtool shaft mountedfor vertical adjustment. in the post, and an overhead drive connectionbetween the upper end of the shaft and the lathe head.

CHARLES4 vv. DYER.

REFERENCES rrED V The vfollowing references are of record in `the fileof thispatent: l i

vUNITED STATES PATENTS v l A vl-DzatteI Hungerford r May.15,\l945

